Evidence map›Paper›PMID 28094382›Full record

ArticleNanoscale2017

The supercoiling state of DNA determines the handedness of both H3 and CENP-A nucleosomes.

R Vlijm, S H Kim, P L De Zwart, Y Dalal, C Dekker

Abstract read
In one paragraph

Article in Nanoscale, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed.

  1. Cryo-ET reveals the in situ architecture of the polar tube invasion apparatus from microsporidian parasites.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  2. Review
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  4. Article
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  9. Topoisomerase IIα is essential for maintenance of mitotic chromosome structure.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  10. Article
  11. The regulation of chromosome segregation via centromere loops.Critical reviews in biochemistry and molecular biology · 2019
    Review
  12. Article
  13. Nucleosome structure and dynamics are coming of age.Nature structural & molecular biology · 2019
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

R VlijmDepartment of Bionanoscience, Kavli Institute of Nanoscience Delft, Delft University of Technology, Delft, 2628CJ, The Netherlands.ORCID http://orcid.org/0000-0001-8909-9518
S H KimDepartment of Bionanoscience, Kavli Institute of Nanoscience Delft, Delft University of Technology, Delft, 2628CJ, The Netherlands.
P L De ZwartDepartment of Bionanoscience, Kavli Institute of Nanoscience Delft, Delft University of Technology, Delft, 2628CJ, The Netherlands.ORCID http://orcid.org/0000-0003-2718-3882
Y DalalChromatin Structure and Epigenetic Mechanisms Unit, Laboratory of Receptor Biology and Gene Expression, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD 20892, USA. dalaly@mail.nih.gov C.Dekker@tudelft.nl.
C DekkerDepartment of Bionanoscience, Kavli Institute of Nanoscience Delft, Delft University of Technology, Delft, 2628CJ, The Netherlands.

Funding

Biomechanical properties of chromatin in cancer and normal cellsZIABC011207 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI DALAL, YAMINI P · 2009 to 2025
$8.8M
Kinetochore Interaction with Centromere Chromatin in human cellsZIABC011209 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI DALAL, YAMINI P · 2009 to 2025
$5.5M
Intramural NIH HHS ZIA BC011209
6 · The paper itself

Abstract

Nucleosomes form the unit structure of the genome in eukaryotes, thereby constituting a fundamental tenet of chromatin biology. In canonical nucleosomes, DNA wraps around the histone octamer in a left-handed toroidal ramp. Here, in single-molecule magnetic tweezers studies of chaperone-assisted nucleosome assembly, we show that the handedness of the DNA wrapping around the nucleosome core is intrinsically ambidextrous, and depends on the pre-assembly supercoiling state of the DNA, i.e., it is not uniquely determined by the octameric histone core. Nucleosomes assembled onto negatively supercoiled DNA are found to exhibit a left-handed conformation, whereas assembly onto positively supercoiled DNA results in right-handed nucleosomes. This intrinsic flexibility to adopt both chiralities is observed both for canonical H3 nucleosomes, and for centromere-specific variant CENP-A nucleosomes. These data support recent advances suggesting an intrinsic adaptability of the nucleosome, and provide insights into how nucleosomes might rapidly re-assemble after cellular processes that generate positive supercoiling in vivo.

Indexed as

CentromereCentromere Protein ADNA, SuperhelicalHistonesNucleosomesCentromere Protein ADNA, SuperhelicalHistonesNucleosomes

Identifiers

PMID28094382
PMCPMC7959483

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.